Results 71 to 80 of about 5,087 (166)

Trajectory Similarity Algorithm Based on DTW and Trajectory Point Compression

Kongzhi Yu Xinxi Jishu
The rapid development of technologies including wireless communication, video surveillance, and satellite positioning has led to the generation of substantial amounts of trajectory data from the movement of mobile device holders.
GAO Wei, QIAN Chengyang, ZHANG Qi, XIE Hongquan   +3 more
doaj  

Enhancing Nearest Neighbor Classification Performance through Dynamic Time Warping with Progressive Constraint

Proceedings of the International Florida Artificial Intelligence Research Society Conference
Dynamic time warping (DTW) is a widely used metric for comparing time series data, offering elasticity in alignment. While the original DTW allows infinite elasticity without penalty, the wDTW imposes a constant penalty regardless of elastic length.
Sung-Hyuk Cha, Teryn Cha, Teja Vuppu
doaj   +1 more source

The use of geographic information systems and remote sensing to evaluate climate change effect on groundwater: application to Mostaganem Plateau, Northwest Algeria

Acque Sotterranee
Effects of climate change in semi-arid areas occur in drought events, which affect aquifers whose recharge depends essentially on precipitation.
Cherifa Hanene Kamelia Chemirik, Djelloul Baahmed, Rachid Nedjai, Djamel Boudjemline, Ikram Mahcer   +4 more
doaj   +1 more source

Assessing the matching degree between environmental loading and GNSS time series with an improved DTW method

Discover Applied Sciences
The GNSS time series is affected by hydrological loading (HYDL) associated with water storage, non-tidal atmospheric loading (NTAL), and non-tidal oceanic loading (NTOL) in the Earth’s surface, potentially leading to time lag phenomena and nonlinear ...
Xiwen Sun, Tieding Lu, Xiaoxing He, Ziyu Wang, Shunqiang Hu, Haicheng Wang, Zhenwu Jin, Huijuan Liu   +7 more
doaj   +1 more source

Evaluating walkability across age groups and flooring materials using IMU sensors

Frontiers in Public Health
This study presents a novel approach to quantitatively assess the impact of flooring materials on walkability using Inertial Measurement Unit (IMU) sensors and Dynamic Time Warping (DTW) algorithm.
Daehwi Jo, Hyunsoo Kim
doaj   +1 more source

The clinical characteristics of cerebral small vessel disease patients with motoric cognitive risk syndrome during single- and dual-task walking

Heliyon
Objective: We aimed to (1) identify neuroimaging biomarkers of distinguishing motoric cognitive risk syndrome (MCRS) risk among older Chinese adults with cerebral small vessel disease (CSVD) and (2) detect differences in gait parameters and neuroimaging ...
Hongyang Xie, Nan Zhang, Cuiqiao Xia, Yu Ding, Hongyi Zhao, Yonghua Huang   +5 more
doaj   +1 more source

An Improved Dynamic Time Warping Algorithm for Active Sonar Signal Matching

Archives of Acoustics
Active sonar signal matching is a critical technique for measuring inter-signal similarity and enhancing target detection and classification performance.
Tongjing Sun, Hunyuan Wang, Lei Chen, Haoran Xu   +3 more
doaj   +1 more source

Association of oral frailty and gait characteristics in patients with cerebral small vessel disease

BMC Neurology
Background The objectives of this study were twofold: (1) to compare gait characteristics between cerebral small vessel disease (CSVD) patients with low-risk oral frailty (OF) and high-risk OF, particularly during dual-task walking (DTW); (2) to ...
Hong-yang Xie, Jun-li Chen, Cui-qiao Xia, Nan Zhang, Zhen-xi Xia, Hong-yi Zhao, Yong-hua Huang   +6 more
doaj   +1 more source

Dynamic time warp versus vector autoregression models for network analyses of psychological processes

Scientific Reports
Psychopathological disorders are increasingly conceptualized as complex dynamic systems, which can be represented as networks of interconnected symptoms.
Floor van der Does, Wessel van Eeden, Laura F. Bringmann, Femke Lamers, Brenda W. J. H. Penninx, Harriëtte Riese, Eric Vermetten, Nic van der Wee, Erik Giltay   +8 more
doaj   +1 more source

Dynamic Time Warping (DTW) [PDF]

, 2012
openaire   +1 more source